Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.15.19

Description The issue concerns accessing NULL pt regs in the bpf get task stack() function. It was introduced in version v5.9 and fixed in version v5.15.19. The actual impact and attack plausibility have not yet been proven.

Recommendations For Linux Kernel versions prior to v5.15.19, update to version v5.15.19 or later to resolve the issue. As a temporary workaround, consider restricting the use of the bpf get task stack() function until a patch is available.